How do I disable scaling on XWayland?

[Qiyu Yan]

Hello all,

I just set up fractional scaling for my external screen, and I end up
with all my XWayland applications become blur. I think it is because
XWayland can not handle the scaling properly. So I whould like to stop
XWayland's scaling while left scaling for Wayland appliations on, I
can't find a docunment about how to do this anywhere, can any one help
me?

Cheers,
Qiyu Yan